Respect the market; impatience is the biggest cause of losses! Missing a suitable opportunity to invest is just a missed chance, and in such a market, losses are more likely. The market is filled with voices claiming Ethereum will go to 5000 or 8000; remember to buy when no one is paying attention and sell when the crowd is in a frenzy. Contracts are even simpler: never chase after rising prices or panic sell. No matter what noise is outside, just open the market and check if it is one of the four positions we want. If it is, then act; if not, wait. Don't chase while watching TV! This is the mindset of institutional trading! Be aware of your own judgments! What you've decided will not change easily; only engage in trades you have confirmed!